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I had a hard drive crash on my desktop earlier in the year and I decided to get a 1TB Hard Drive to restore my computer. However, when I started to install Windows7 on it not only did the installation itself become super laggy. This meaning it took over 8 hours to install and over an hour and a half to just get to the point where I can select my hard drive. At each of the screens the mouse lagged horribly every time I went to move it. When windows 7 finally installed on my computer it was terribly slow. The CPU was maxed at 100% at all times. What could be causing this/how can I fix it?
Test your hardware. Start with the hard drive, then the power supply. – None – 2012-08-06T05:32:46.700
@RandolphWest the thing is, I just installed a new Hard Drive and a New Powersupply. How would I test them? – Nick122 – 2012-08-06T15:39:07.463
A local computer shop will have the right tools for testing your hardware. If you've already replaced the PSU and hard drive, you may have a faulty motherboard. – None – 2012-08-07T01:06:05.520
Could it be a cooling issue? – Nick122 – 2012-08-07T01:21:00.717
Unlikely, with what you've described. – None – 2012-08-07T01:30:44.397